Word: 因此 (yīncǐ)

因此，天气一点也不热。

Yīncǐ, tiānqì yìdiǎn yě bú rè.

So, it isn't hot at all.

因此，我们必须自己照顾自己。

Yīncǐ, wǒmen bìxū zìjǐ zhàogu zìjǐ.

Hence, we have to take care of ourselves.

因此我跟你说，你不要一个人去。

Yīncǐ wǒ gēn nǐ shuō, nǐ búyào yí gè rén qù.

That's why I told you that you shouldn't go alone.